Reduction of energy cost and CO2 emission for the boilers in a full-scale refinery plant by adding waste hydrogen-rich fuel gas

Chih Ju G. Jou, Chien Li Lee, Cheng Hsien Tsai, H. Paul Wang

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The use of hydrogen-containing fuel in gas turbines and industrial burners can benefit both losses of radiative heat and emission of pollutants. In this study, worthless waste hydrogen-rich fuel gas (RG) was led into a high-pressure boiler or a medium-pressure boiler in the fuel system to partially replace fuel oil (FO) and/or natural gas (NG) in a full-scale petrochettristry plant. Two sets of inlet fuel flow rate ratios were examined to evaluate the reductions of boiler energy consumption and CO2 emission. The result showed that for the high-pressure boiler at a loading of 75%, the usage of NG can be 13 × 106 m3/y less and the CO'2 emission can be 2.2 × 104 tons/y lower by changing the inlet FO:NG:RG ratio from 1:1:0 to 1:0.65:0.35. Meanwhile, for the medium-pressure boiler at a loading of 70%, the usage of NG can be cut by 8 × 106 m3/y and the CO2 emission can be 3.0 × 104 tons/y lower by changing the inlet FO:RG ratio from 1:0.2 to 1:0.7. Therefore, the addition of RG has practical benefits on both energy saving and the reduction of greenhouse gas emission.

Original languageEnglish
Pages (from-to)564-569
Number of pages6
JournalEnergy and Fuels
Volume22
Issue number1
DOIs
Publication statusPublished - 2008 Jan 1

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology

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